sensors Mode-S transponder
C804D8
ICAO 24-bit transponder address · allocated to New Zealand
Currently assigned to ZK-ETZ · CESSNA 152
- Hex
- C804D8
- Octal
- 62002330
- Decimal
- 13,108,440
- Country
- NZ
- Tail
- ZK-ETZ
- Type
- C152
- Flights observed
- 42
- Distinct callsigns
- 1
- Country
- NZ
- Last broadcast
- Jul 21, 01:25 UTC
Last known position
Country allocation
The ICAO 24-bit address C804D8 falls within the block assigned to New Zealand (NZ) by ICAO Annex 10, Volume III. Every aircraft registered in New Zealand receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 1 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| ZKETZ | - | 42 | 2026-07-21 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-21 | ZKETZ | - | Jul 21, 00:35 UTC | Jul 21, 01:25 UTC | 50m |
| 2026-07-08 | ZKETZ | - | Jul 8, 00:45 UTC | Jul 8, 01:10 UTC | 25m |
| 2026-07-05 | ZKETZ | - | Jul 5, 01:40 UTC | Jul 5, 01:50 UTC | 10m |
| 2026-07-05 | ZKETZ | - | Jul 5, 00:50 UTC | Jul 5, 01:05 UTC | 15m |
| 2026-07-03 | ZKETZ | - | Jul 3, 21:45 UTC | Jul 3, 23:35 UTC | 1h 50m |
| 2026-07-03 | ZKETZ | - | Jul 3, 02:15 UTC | Jul 3, 03:30 UTC | 1h 15m |
| 2026-07-01 | ZKETZ | - | Jul 1, 04:10 UTC | Jul 1, 05:20 UTC | 1h 10m |
| 2026-06-30 | ZKETZ | - | Jun 30, 04:15 UTC | Jun 30, 05:05 UTC | 50m |
| 2026-06-30 | ZKETZ | - | Jun 30, 02:00 UTC | Jun 30, 03:40 UTC | 1h 40m |
| 2026-06-29 | ZKETZ | - | Jun 29, 23:29 UTC | Jun 30, 00:00 UTC | 30m |
| 2026-06-29 | ZKETZ | - | Jun 29, 21:24 UTC | Jun 29, 22:44 UTC | 1h 20m |
| 2026-06-28 | ZKETZ | - | Jun 28, 00:20 UTC | Jun 28, 01:04 UTC | 45m |
| 2026-06-27 | ZKETZ | - | Jun 27, 02:35 UTC | Jun 27, 03:40 UTC | 1h 5m |
| 2026-06-26 | ZKETZ | - | Jun 26, 22:10 UTC | Jun 26, 22:49 UTC | 40m |
| 2026-06-21 | ZKETZ | - | Jun 21, 23:55 UTC | Jun 22, 01:10 UTC | 1h 15m |
| 2026-06-19 | ZKETZ | - | Jun 19, 20:34 UTC | Jun 19, 21:54 UTC | 1h 20m |
| 2026-06-17 | ZKETZ | - | Jun 17, 23:20 UTC | Jun 17, 23:55 UTC | 35m |
| 2026-06-14 | ZKETZ | AMZ → AMZ | Jun 14, 02:30 UTC | Jun 14, 03:25 UTC | 55m |
| 2026-06-13 | ZKETZ | - | Jun 13, 22:40 UTC | Jun 13, 23:25 UTC | 45m |
| 2026-06-13 | ZKETZ | - | Jun 13, 01:35 UTC | Jun 13, 02:10 UTC | 35m |
| 2026-06-08 | ZKETZ | - | Jun 8, 22:45 UTC | Jun 8, 22:55 UTC | 10m |
| 2026-06-07 | ZKETZ | - | Jun 7, 02:04 UTC | Jun 7, 02:40 UTC | 35m |
| 2026-06-03 | ZKETZ | - | Jun 3, 04:40 UTC | Jun 3, 04:55 UTC | 15m |
| 2026-06-03 | ZKETZ | - | Jun 3, 03:10 UTC | Jun 3, 03:30 UTC | 20m |
| 2026-06-03 | ZKETZ | - | Jun 3, 01:00 UTC | Jun 3, 01:35 UTC | 35m |
| 2026-05-30 | ZKETZ | - | May 30, 01:40 UTC | May 30, 02:30 UTC | 50m |
| 2026-05-26 | ZKETZ | - | May 26, 00:24 UTC | May 26, 00:49 UTC | 25m |
| 2026-05-24 | ZKETZ | - | May 24, 00:00 UTC | May 24, 00:50 UTC | 50m |
| 2026-05-14 | ZKETZ | - | May 14, 02:50 UTC | May 14, 03:00 UTC | 10m |
| 2026-05-14 | ZKETZ | - | May 14, 00:25 UTC | May 14, 02:20 UTC | 1h 55m |
| 2026-05-13 | ZKETZ | - | May 13, 04:50 UTC | May 13, 05:40 UTC | 50m |
| 2026-05-13 | ZKETZ | - | May 13, 01:05 UTC | May 13, 01:15 UTC | 10m |
| 2026-05-12 | ZKETZ | - | May 12, 23:35 UTC | May 13, 00:25 UTC | 50m |
| 2026-05-12 | ZKETZ | - | May 12, 21:45 UTC | May 12, 22:15 UTC | 30m |
| 2026-05-10 | ZKETZ | - | May 10, 23:55 UTC | May 11, 00:19 UTC | 25m |
| 2026-05-10 | ZKETZ | - | May 10, 22:35 UTC | May 10, 23:19 UTC | 45m |
| 2026-05-10 | ZKETZ | - | May 10, 20:14 UTC | May 10, 21:14 UTC | 1h 0m |
| 2026-05-10 | ZKETZ | AMZ → AMZ | May 10, 00:15 UTC | May 10, 01:04 UTC | 50m |
| 2026-05-09 | ZKETZ | - | May 9, 22:49 UTC | May 9, 23:15 UTC | 25m |
| 2026-05-04 | ZKETZ | - | May 4, 05:25 UTC | May 4, 05:55 UTC | 30m |
| 2026-05-02 | ZKETZ | - | May 2, 23:15 UTC | May 2, 23:50 UTC | 35m |
| 2026-04-17 | ZKETZ | - | Apr 17, 01:40 UTC | Apr 17, 02:55 UTC | 1h 15m |
About Mode-S
A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.
Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.
Prefer a tail-number view? See the ZK-ETZ page for operator, model, and routing details .